<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.sql.*" %><%--
  Created by IntelliJ IDEA.
  User: DELL
  Date: 2018/4/2
  Time: 15:43
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>userList</title>
</head>

<style type="text/css">
    td, th {
        /*border: 1px solid #000;*/
        border: 0px;
        padding: 1px;
    }

    table {
        /*border: 1px solid #000;*/
        border: 0px;
        border-collapse: collapse;
    }
</style>

<h1>用户管理信息系统</h1>

<%@ include file="isLogin.jsp" %>


<p><a href="userAdd.jsp">添加用户</a></p><br/>

<table>
    <thead>

    <tr>
        <th>编号</th>
        <th>用户名</th>
        <th>密码</th>
        <th></th>
        <th></th>

    </tr>
    </thead>

    <tbody>
        <%

        request.setCharacterEncoding("utf-8");
        class User {
            int id;
            String name;
            String password;

            public User(int id, String name, String password) {
                this.id = id;
                this.name = name;
                this.password = password;
            }

        }

        List<User> list = new ArrayList<User>();

        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

        String sql = "select * from t_users";

        Class.forName("com.mysql.jdbc.Driver");

        try {
            connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone = UTC",
                    "root",

                    "123456"
            );
        } catch (SQLException e) {
            e.printStackTrace();
        }
        statement = connection.createStatement();
        resultSet = statement.executeQuery(sql);

        while (resultSet.next()) {
            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);

            User user = new User(id, username, password);
            list.add(user);
        }

        resultSet.close();
        statement.close();
        connection.close();

        for (User user : list) {
            out.write("<tr><td>" + user.id + "</td><td>" + user.name + "</td><td>" + user.password
            + "</td><td><a href='userUpdate.jsp?id=" + user.id + "&name="+user.name+"&psd="+user.password+"'>更新</a></td><td><a href='userdelete.jsp?id="
            + user.id + "'>删除</a></td></tr>\n");

        }
    %>
</table>

<jsp:include page="footer.jsp">
    <jsp:param name="year" value="2018"/>
</jsp:include>
</body>
</html>
